At 19 he exploded onto the scene with teen shocker Kids – and spent the next 20 years making lurid, provocative films like Gummo and Spring Breakers. So why is Harmony Korine now doing oil paintings? He talks fatherhood, crack addiction, and getting beaten up for laughs

In 1995, photographer-turned-director Larry Clark and a bunch of novice actors made Kids. On its 20th anniversary, writer Harmony Korine and actor Leo Fitzpatrick remember the film dubbed a ‘wake-up call to the modern world’